Nut lock



Jan' 11 1924 NuT Loox Filed Nov. 2' 1922 Patented Jan. I, 1924. i

UNITED sTATEs PATENT OFFICE.

RUDOLPH KLIAVIN, OF SEATTLE, WASHINGTON, ASSIGOR OF FOBTY PER CENT T0 KIRIL TOHTIEFF, OF ABERDEEN. WASHINGTON.

NUT LOCK Application filed November 2, 1922.

To all whom it may conce'r'n: i

Be it known that I, RUDoLru E. KLIAvIN, a citizen of the Republic of Latvia, residing at Seattle, in the county of King'and State of lVashington, have invented certain new and useful Improveinents in Nut Locks, of which the following is a specification.

This invention` relates generally to nutlocks, having particular' reference to a nutlock in which the looking is done by means of a key seated in co-operating groowrs in the bolt and nut, the invention having for an object to provide an improved and simplified nut lock of this kind, a further ob- ]ect relating specifically to the means for holding the key in place. 4

For further comprehension .of the invention, and of the objects and advantages thereof, reference will be had to the following description and aecompanying drawings, and to the appcnded claims in which the various novel features of the invention are more particularly set forth.

Fig. 1 of the drawings is an end view ol' a nut and bolt having one embodiment of my improved nut-lock applied thereLo.

Fig. 2 is a partial side view and partial longitndinalisectional view tl'iereof.

Fig. is al detail perspeetive view of the looking key employed.

Referring now to the different fignres of the drawing, the bolt is in each case mon' beretl 10 and the nut 11. rl`he general construction of the nut and bolt as regards threading, Shape and the like, may he ns usual.

In forming my improved nut-lock the bolt 10 is provided with a longitudinal groove l;)J extending throughout its threaded portion, while the outer face of the nut ll, or that. away from the work being held, is formed with a series of radial grooves 133 which communicate with the hole'in the nut. lu the enibodiment of the inventiou shown here the outer face of the nut has a llat projeetion 14 of cireular outline in which said radial grooves are formed.

The lotking key employed is shown in detail in Fig. 3, being indicated generally by the number 15, this key being of angular form as seen in side view having one arm 15' adaptcd to engage in the groove 12, in the bolt 10 and an arin 15ll at right anglcs Serial No. 598,460.

thereto adapted to engage in one' of the radial grooves 13 in the nut l'l.

Fixed to the outer end of the arm 1G is a spring Wire I'T curved longitndinally ,to arcuate shape to lie in an undercnt groove .18 the edge oithe projettion li. and having on its inner face near its lfree end a stud '19 adapted to project into one ot' the grooves 13. Asn'ill be apparent, the engagement of the spring IT in the groove IS p'revents the key from moving outu'ard along the bolt.

l-Iaving thus (leseribed niy invention 'vhat l claini as neu' and desire to Protect by Letters Patent of the United States is as follows:

l. In combination, a bolt having a longitudinal groove, a nut having its outer face formed with a radial groove, und having an under-cut peripheral reeess connnunie-.iting with said groove, a two-armed key having one arm engaging in the said lougitndinal groove and the other ariu engaging in the radial groove, and a retaining element `for said key rulapted toyngage in the said recess in the periphery of the nut to prevent axial displaceinent of the key.

2. ln colnbiimtion, a bolt having a longitudinal groove, a nut vhaving its outer face l'ornled with a radial groove, and havingIr un nndercnt peripheral reeess ('omnninienting with said groove, a. tn'o-armed key having one arm engaging iu the said longitudinal groove und the other arxn engaging in the radiul groove, and a retaining elenu'nt. for said key adapted to eng'age in the said recess in the periphery of the nut to prevent. :lxinl displacement of the key, said retaining element being in the form of a lat spring secnred to the said key.

ll. ln(combination, a bolt having a longitudinal groove, a nut having a circular disk-` like projeetion on its outer face forlned with a series of radia! grooves, a two-arnied key having one. arm engaging in' said longltudinal groove and the other arrn engaging in one ol' said i'adial grooves, and n spring' element carried by said key und atlapted to engage in an undercut. groove in the cirenmferential wall of said wojection to hold the key against axial disp acement.

In testimony whereof I havc aftixed my signature.

RUDOLPH E. KLIAVIN. 

